CVE-2022-20749Network attack vector

Remote command injection via web interface input

Published Feb 10, 2022 · Updated Nov 6, 2024

Command injection in Cisco Small Business RV340 and RV345 router firmware through the web-based management interface allows remote attackers to execute commands on affected devices. The interface fails to validate user-supplied input before passing it to the underlying Linux command processor, allowing unauthenticated requests to run arbitrary commands. Exploitation requires network access to the management interface and can compromise confidentiality, integrity, and availability; Cisco lists releases through 1.0.03.24 as vulnerable and 1.0.03.26 as fixed.

CVSS severity7.3
High
EPSS probability4.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Cisco Small Business RV340 and RV345 router firmware through the web-based management interface allows remote attackers to execute commands on affected devices. The interface fails to validate user-supplied input before passing it to the underlying Linux command processor, allowing unauthenticated requests to run arbitrary commands. Exploitation requires network access to the management interface and can compromise confidentiality, integrity, and availability; Cisco lists releases through 1.0.03.24 as vulnerable and 1.0.03.26 as fixed.

The record

CVE
CVE-2022-20749
Published
Feb 10, 2022
Updated
Nov 6, 2024
Vendor
ClamAV
Product
Cisco Small Business RV Series Router Firmware
Classifications
CWE-787, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Small Business RV Series Router Firmwareversion=n/a

Published CVSS scores

7.3Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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